Parenthesize (async function expression() { })

Close estools#222

Author: Constellation

package.json

@@ -1,67 +1,68 @@
 {
-  "name": "escodegen",
-  "description": "ECMAScript code generator",
-  "homepage": "http://github.com/estools/escodegen",
-  "main": "escodegen.js",
-  "bin": {
-    "esgenerate": "./bin/esgenerate.js",
-    "escodegen": "./bin/escodegen.js"
-  },
-  "files": [
-    "LICENSE.BSD",
-    "LICENSE.source-map",
-    "README.md",
-    "bin",
-    "escodegen.js",
-    "package.json"
-  ],
-  "version": "1.6.0",
-  "engines": {
-    "node": ">=0.10.0"
-  },
-  "maintainers": [
-    {
-      "name": "Yusuke Suzuki",
-      "email": "utatane.tea@gmail.com",
-      "web": "http://github.com/Constellation"
+    "name": "escodegen",
+    "description": "ECMAScript code generator",
+    "homepage": "http://github.com/estools/escodegen",
+    "main": "escodegen.js",
+    "bin": {
+        "esgenerate": "./bin/esgenerate.js",
+        "escodegen": "./bin/escodegen.js"
+    },
+    "files": [
+        "LICENSE.BSD",
+        "LICENSE.source-map",
+        "README.md",
+        "bin",
+        "escodegen.js",
+        "package.json"
+    ],
+    "version": "1.6.0",
+    "engines": {
+        "node": ">=0.10.0"
+    },
+    "maintainers": [
+        {
+            "name": "Yusuke Suzuki",
+            "email": "utatane.tea@gmail.com",
+            "web": "http://github.com/Constellation"
+        }
+    ],
+    "repository": {
+        "type": "git",
+        "url": "http://github.com/estools/escodegen.git"
+    },
+    "dependencies": {
+        "estraverse": "^1.9.1",
+        "esutils": "^1.1.6",
+        "esprima": "^1.2.2",
+        "optionator": "^0.5.0"
+    },
+    "optionalDependencies": {
+        "source-map": "~0.1.40"
+    },
+    "devDependencies": {
+        "acorn-6to5": "^0.11.1-25",
+        "bluebird": "^2.3.11",
+        "bower-registry-client": "^0.2.1",
+        "chai": "^1.10.0",
+        "commonjs-everywhere": "^0.9.7",
+        "esprima-moz": "*",
+        "gulp": "^3.8.10",
+        "gulp-eslint": "^0.2.0",
+        "gulp-mocha": "^2.0.0",
+        "semver": "^4.1.0"
+    },
+    "licenses": [
+        {
+            "type": "BSD",
+            "url": "http://github.com/estools/escodegen/raw/master/LICENSE.BSD"
+        }
+    ],
+    "scripts": {
+        "test": "gulp travis",
+        "unit-test": "gulp test",
+        "lint": "gulp lint",
+        "release": "node tools/release.js",
+        "build-min": "./node_modules/.bin/cjsify -ma path: tools/entry-point.js > escodegen.browser.min.js",
+        "build": "./node_modules/.bin/cjsify -a path: tools/entry-point.js > escodegen.browser.js"
     }
-  ],
-  "repository": {
-    "type": "git",
-    "url": "http://github.com/estools/escodegen.git"
-  },
-  "dependencies": {
-    "estraverse": "^1.9.1",
-    "esutils": "^1.1.6",
-    "esprima": "^1.2.2",
-    "optionator": "^0.5.0"
-  },
-  "optionalDependencies": {
-    "source-map": "~0.1.40"
-  },
-  "devDependencies": {
-    "esprima-moz": "*",
-    "semver": "^4.1.0",
-    "bluebird": "^2.3.11",
-    "chai": "^1.10.0",
-    "gulp-mocha": "^2.0.0",
-    "gulp-eslint": "^0.2.0",
-    "gulp": "^3.8.10",
-    "bower-registry-client": "^0.2.1",
-    "commonjs-everywhere": "^0.9.7"
-  },
-  "licenses": [
-    {
-      "type": "BSD",
-      "url": "http://github.com/estools/escodegen/raw/master/LICENSE.BSD"
-    }
-  ],
-  "scripts": {
-    "test": "gulp travis",
-    "unit-test": "gulp test",
-    "lint": "gulp lint",
-    "release": "node tools/release.js",
-    "build-min": "./node_modules/.bin/cjsify -ma path: tools/entry-point.js > escodegen.browser.min.js",
-    "build": "./node_modules/.bin/cjsify -a path: tools/entry-point.js > escodegen.browser.js"
-  }
-}
+}